I just bought a mint but used vs3 and had to replace an o-ring in the ASA. Once that was done, I gassed it up for a test and it would shoot once and sputtered without re-cocking. I cleaned off the bolt and oiled the hammer only... everything looked good so i tried again and same thing..... sputter. After a few manual re-cocking and sputters and a tweak in the regulator it just started to work perfectly. After the hopper was empty from shooting a series of rapid fires, I looked at the LED on the trigger and it was blinking. The Manual doesn't say anything about blinking LEDs so I don't know what that means. Can anyone explain the blinking LEDs or the sputtering that was dealing with?